Guar gum, also known as guaran, is a natural hydrocolloid derived from the seeds of the guar plant, which is mainly grown in India and Pakistan. The guar plant is a legume that produces large pods containing seeds that are rich in a carbohydrate called galactomannan. Guar gum is made by grinding the endosperm of the guar seed, which is then processed to make a fine powder.

Guar gum is a versatile ingredient that is widely used in various industries for its thickening, gelling, and stabilizing properties.

In the food industry, it is used as a thickener, emulsifier, and stabilizer in products such as ice cream, salad dressings, and sauces. E number is E412.

In the pharmaceutical industry, it is used as a binder and disintegrant in tablet manufacturing and as a thickener and suspending agent in liquid formulations.

In the oil and gas industry, guar gum is used as a viscosifying agent in drilling fluids to increase the fluid's ability to carry cuttings. It is also used to increase the gel strength of the fluid, which helps to improve hole stability and reduce the risk of lost circulation.

In the textile industry, guar gum is used as a sizing agent, thickener, and binder in the production of yarns and fabrics.

In the cosmetics industry, it is used as a thickener, emulsifier, and stabilizer in lotions, creams, and other personal care products.

Guar gum is generally considered safe for human consumption and for use in products.